CN214518496U

CN214518496U - Welding positioning device for one-time forming of frame pre-welding of hand-operated tablet press

Info

Publication number: CN214518496U
Application number: CN202120373401.7U
Authority: CN
Inventors: 石文根
Original assignee: Yangzhou Nuoya Machinery Co ltd
Current assignee: Yangzhou Nuoya Machinery Co ltd
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2021-10-29
Anticipated expiration: 2031-02-10

Abstract

The utility model discloses a hand tablet press frame welds welding position device for one-time shaping in advance belongs to pharmaceutical machinery manufacturing technical field, has solved the problem that traditional hand tablet press frame manufacturing procedure is complicated, product mechanical strength receives influence, production efficiency is low. The positioning device mainly comprises a first side plate positioning mechanism, a second side plate positioning mechanism and a middle supporting positioning mechanism; the first side plate positioning mechanism comprises a first sliding block assembly and a first side plate positioning assembly, and the second side plate positioning mechanism comprises a second sliding block assembly and a second side plate positioning assembly; the middle supporting and positioning mechanism comprises a third sliding block assembly and a middle plate positioning assembly. The utility model discloses positioning speed is very fast, and workman intensity of labour is very low, and structural design is simple, and convenient operation is swift, and the practicality is very strong, and production efficiency is very high, for the enterprise has created considerable economic benefits, has significant in hand tablet press production technical field.

Description

Welding positioning device for one-time forming of frame pre-welding of hand-operated tablet press

Technical Field

The utility model belongs to the technical field of pharmaceutical machinery manufacturing, specifically speaking especially relates to a hand tablet press frame is welded and is used welding position device for one-time shaping in advance that need not to punch on the product, effectively guarantee the mechanical strength of product, effectively reduce production processes, positioning speed is fast, the one-time welding shaping of product pre-welding, reduce workman intensity of labour by a wide margin, improve production efficiency by a wide margin.

Background

The hand-operated tablet press is also called a hand-operated single-punch tablet press, has no motor transmission and no need of power supply, is a small-sized table type continuous tablet press and is used for pressing various granular raw materials into round pieces. The device has the advantages of excellent performance, strong adaptability, convenient use, easy maintenance, small volume and light weight, and can be widely applied to occasions such as laboratory trial production, teaching, small-scale production and the like. The main body part of the hand tablet press is a gantry type frame, an eccentric wheel and a filling cam are connected in series with a main shaft on the frame, a rocker arm and a handle are arranged at the right end of the shaft, the main shaft is driven in a manual mode to drive the eccentric wheel, the filling cam, a lifting rod and a feeder, and a small lever drives the feeder to do reciprocating lifting motion. The gantry type frame is one of core components of a hand-operated tablet press, and mainly comprises a frame base and two identical side plates which are oppositely arranged on the frame base, wherein a material poking rod mounting lug for mounting a material poking rod is fixedly arranged on one side plate; an upper guide plate and a lower table top plate are fixedly arranged between the two side plates, the inner side plane of the upper guide plate is aligned with the first plane of the side plates, and the back surface of the lower table top plate is aligned with the second plane of the side plates. The traditional frame structure is shown in figures 1 and 2 in the attached drawings of the specification. The rack base, the two side plates, the upper guide plate, the lower table panel and the material poking rod mounting lug are used as scattered parts, and time is inevitably wasted by drawing lines and positioning welding. In order to facilitate production, an upper guide plate and two side plates of the traditional rack are fixedly connected through bolts.

The traditional hand-operated tablet press frame processing method adopts a processing mode of line drawing, positioning and re-welding, and specifically comprises the following operation steps: a. four threaded holes are processed on the side face of the upper guide plate in advance by using a numerical control machine, and two pairs of through holes B are processed on the two side plates respectively; b. the upper guide plate is fixed between the two side plates by using accessories such as bolts, gaskets and the like; c. finding out the positions of the two side plates on the bottom plate by using a line drawing tool such as a ruler pen and the like, and placing the two side plates after finding the positions; because the welding rod needs to be held by the left hand and the welding gun needs to be held by the right hand during welding, the position of the side plate needs to be fixed by means of external force, and a special tool for clamping the side plate is generally designed to lock the two side plates in order to save labor; d. after the side plates are welded, the special side plate clamping tool is dismantled, the position of the lower deck plate is found out by using a line drawing tool, and the lower deck plate is locked by using the special lower deck plate clamping tool after alignment; e. after the lower deck plate is welded, the special clamping tool for clamping the lower deck plate is detached, the position of the material stirring rod mounting lug is found by using a line drawing tool, after alignment is found, the special clamping tool for the material stirring rod mounting lug is reused for locking the material stirring rod mounting lug, and the material stirring rod mounting lug is welded after clamping. Therefore, the traditional manual tablet press machine frame pre-welding forming operation method has the following defects: 1. the operation steps are troublesome, three times of line drawing and positioning are needed, three special tools need to be designed, one product needs three times of tool assembly and disassembly, each product needs to be operated repeatedly with the labor intensity, the labor intensity is high, the production efficiency is low, and the error repair rate is high; 2. the two side plates are hollow, and the mechanical strength and stability of the whole machine are influenced by drilling through holes on the side plates, but if the upper guide plate is not fixedly connected with the side plates through bolts, the upper guide plate needs to be welded on the side plates in a line drawing and positioning mode, so that the production difficulty is greatly increased; for the traditional production method, the processing difficulty is simplified by sacrificing certain mechanical strength of a machine; 3. need punch on upper guide plate, curb plate in advance, the manufacturing procedure is loaded down with trivial details, wastes time and energy, further reduces enterprise production efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough that prior art exists, provide one kind need not to punch on the product, effectively guarantee the mechanical strength of product, effectively reduce production processes, positioning speed fast, the disposable weld forming of product pre-welding, reduce workman intensity of labour by a wide margin, increase substantially production efficiency's hand tablet press frame welds welding positioner for the disposable shaping of pre-welding.

The utility model discloses a realize through following technical scheme:

a welding positioning device for one-time forming of frame pre-welding of a hand-operated tablet press comprises a workbench, a first side plate positioning mechanism, a second side plate positioning mechanism and an intermediate supporting positioning mechanism, wherein the first side plate positioning mechanism, the second side plate positioning mechanism and the intermediate supporting positioning mechanism are positioned on the table top of the workbench;

the first side plate positioning mechanism comprises a first sliding block assembly which slides along the first guide rail, and a first side plate positioning assembly which plays a role in positioning the first side plate is fixedly arranged on the first sliding block assembly; the first sliding block assembly comprises a first sliding block, a first pressing block accommodating cavity for accommodating a first pressing block is arranged at the bottom of the first sliding block, the first pressing block is embedded in the first pressing block accommodating cavity in a clearance mode and is in contact with the table top of the workbench, the first pressing block is constrained by the first sliding block and has no degree of freedom in the X-axis direction and the Y-axis direction, a first bolt hole communicated with the first pressing block accommodating cavity is formed in the first sliding block, and a first fastening piece for fastening the first pressing block is arranged in the first bolt hole in a matched mode; the first side plate positioning assembly comprises a first positioning plate provided with a clamping jaw, the first positioning plate is fixedly connected to the first sliding block, and a pin shaft for positioning the material stirring rod mounting lug is fixedly arranged on the first positioning plate;

the second side plate positioning mechanism comprises a second sliding block assembly which slides along a second guide rail, and a second side plate positioning assembly which plays a role in positioning the second side plate is fixedly arranged on the second sliding block assembly; the second sliding block assembly comprises a second sliding block, a second pressing block accommodating cavity for accommodating a second pressing block is arranged at the bottom of the second sliding block, the second pressing block is embedded in the second pressing block accommodating cavity in a clearance mode and is in contact with the table top of the workbench, the second pressing block is constrained by the second sliding block and has no degree of freedom in the X-axis direction and the Y-axis direction, a second bolt hole communicated with the second pressing block accommodating cavity is formed in the second sliding block, a second fastening piece for fastening the second pressing block is arranged in the second bolt hole in a matched mode, a reference block sliding in the Y-axis direction is arranged on the inner side face of the second sliding block, and a reference block pressing piece for fixing the reference block on the second sliding block is arranged on the reference block; the base pressing sub mechanism which plays a role of pressing the base of the rack is also arranged on the reference block; the second side plate positioning assembly comprises a second positioning plate provided with a clamping jaw, and the second positioning plate is fixedly connected to the second sliding block;

the middle supporting and positioning mechanism comprises a third sliding block assembly which slides along a third guide rail, and a middle plate positioning assembly which plays a role in positioning the upper guide plate and the lower table top plate is fixedly arranged on the third sliding block assembly; the third slide block assembly comprises a third slide block, a third press block accommodating cavity for accommodating a third press block is arranged at the bottom of the third slide block, the third press block is embedded in the third press block accommodating cavity in a clearance mode and is in contact with the table top of the workbench, the third press block is constrained by the third slide block and has no degree of freedom in the X-axis direction and the Y-axis direction, a third bolt hole communicated with the third press block accommodating cavity is formed in the third slide block, and a third fastening piece for fastening the third press block is arranged in the third bolt hole in a matched mode; the middle plate positioning assembly comprises a middle positioning plate fixed on the third sliding block, an upper supporting plate for supporting the upper guide plate and a lower supporting plate for supporting the lower table plate are fixedly arranged on the middle positioning plate, an upper pressing sub mechanism for pressing the upper guide plate is arranged above the upper supporting plate, and a lower pressing sub mechanism for pressing the lower table plate is arranged below the lower supporting plate.

Preferably, the first tightening member 324, the second tightening member 424 and the third tightening member 524 are all adjustable tightening handles

Preferably, the first sliding block, the second sliding block and the third sliding block are all provided with a power unit by a screw auxiliary lead screw assembly; the screw pair lead screw assembly comprises a slide block lead screw with a hand wheel and a vertical type bearing with a seat, wherein the vertical type bearing with the seat is connected with the slide block lead screw bearing, and the slide block lead screw is in threaded connection with the slide block.

Preferably, the first pressing block, the second pressing block and the third pressing block are cuboid blocks with grooves in the middle, and the pressing block accommodating cavity is matched with the pressing blocks in shape.

Preferably, first guide rail, second guide rail, third guide rail are the design of forked tail slot type double guide rail, and first slider, second slider and third slider are equipped with the forked tail guide block with forked tail slot type double guide rail looks adaptation respectively.

Preferably, the datum block hold down comprises a datum block first adjustable hold down handle; the datum block is Z-shaped, a first threaded hole of the datum block matched with a first adjustable fastening handle of the datum block is formed in the head of the datum block, and the datum block is connected with the inner side face of the second sliding block in a sliding mode through a guide rail guide block.

Preferably, base clamp mechanism sets up rectangular fretwork hole's rectangular clamp plate including the centre, and the adjustable tight handle of reference block second passes rectangular fretwork hole and sets up the reference block second screw hole screw-thread fit connection on the reference block.

Preferably, rectangular clamp plate is waist type form, and rectangular fretwork hole also is waist type form, and the adjustable position of benchmark piece second is tightly decided and is still equipped with the gasket between handle and the rectangular clamp plate.

Preferably, the upper pressing sub-mechanism comprises an upper pressing plate which moves up and down along the middle positioning plate, an upper clamping block which plays a role of clamping the upper guide plate is arranged at the position of the rear end of the upper pressing plate, the upper clamping block and an upper pressing screw rod with a hand wheel form a screw pair, the tail end of the upper pressing screw rod is in clearance fit with an upper pressing through hole formed in the rear side surface of the upper pressing plate, the head end of the upper pressing screw rod is connected with an upper bearing plate bearing, upper bearing through holes are formed in two sides of the upper clamping block, one end of an upper bearing rod penetrates through the upper bearing through hole and is fixedly connected with the upper pressing plate, and the other end of the upper bearing rod is fixedly connected with the upper bearing plate;

the lower pressing sub mechanism comprises a lower pressing plate which moves up and down along the middle positioning plate, a lower clamping block which plays a role of clamping the lower table top plate is arranged at the rear end position of the lower pressing plate, the lower clamping block and a lower pressing screw rod provided with a hand wheel form a screw pair, the tail end of the lower pressing screw rod is in clearance fit with a lower pressing through hole formed in the rear side surface of the lower pressing plate, the head end of the lower pressing screw rod is connected with a lower bearing plate bearing, lower supporting through holes are formed in two sides of the lower clamping block, one end of the lower supporting rod penetrates through the lower supporting through hole and is fixedly connected with the lower pressing plate, and the other end of the lower supporting rod is fixedly connected with the lower bearing plate;

the upper pressing plate and the lower pressing plate are both provided with power units by pressing plate height adjusting sub-mechanisms; the upper pressure plate and the lower pressure plate are both in sliding connection with the middle positioning plate in a guide rail guide block matching mode; the head position of middle locating plate is fixed and is equipped with the high bearing plate, and the high lead screw that is equipped with the hand wheel is connected with high bearing plate bearing, and the end of high lead screw and the boss axle bed clearance fit who fixes at middle locating plate terminal position, top board, holding down plate are equallyd divide and are do not constitute screw pair with high lead screw.

Preferably, the table is a height-adjustable rotary table; a table-board screw rod in threaded connection with the upright post is fixedly arranged on the back of the workbench, a T-shaped open slot is formed in the head of the upright post, and the vertical slot is clamped by a locking bolt; the root of the upright post is fixedly provided with a pedal disc, and the upright post is connected with a bearing of the workbench base; the pedal plate is provided with a pedal plate threaded hole, and a handle screw rod in threaded connection with the pedal plate threaded hole extends into a pedal plate through hole arranged on the base of the workbench.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has the advantages that the product structural strength is not required to be sacrificed to meet the requirement of convenient production, each part is locked and positioned on the workbench, and the quick pre-welding forming of the frame is realized on the premise of not influencing the mechanical strength of the product, and the pre-welding one-step forming obviously shortens the processing period; the inner side plane of the upper guide plate needs to be aligned with the first plane of the side plate, the back surface of the lower table top plate needs to be aligned with the second plane of the side plate, accurate positioning of the upper guide plate and the lower table top plate is achieved by controlling the thickness of the middle positioning plate, and operation is simple; the utility model has the advantages of fast positioning speed, low labor intensity of workers, saving punching process, effectively simplifying frame processing steps, greatly improving the production efficiency of enterprises and bringing considerable economic benefit to enterprises;

the utility model discloses welding position device structural design is ingenious, and the position of frame base has been confirmed in the cooperation of second slider and reference block, and first curb plate positioning mechanism has confirmed the position of first curb plate, and second curb plate positioning mechanism has confirmed the position of second curb plate, and middle supporting positioning mechanism has confirmed the position of upper baffle and lower deck plate, puts into promptly to fix a position, and frame pre-welding one shot forming simplifies the frame manufacturing procedure by a wide margin, and location operation is convenient and fast, effectively reduces workman intensity of labour, and enterprise production efficiency obviously promotes; the utility model discloses regard the corner between reference seat and the second slider as the reference angle of frame base, this reference seat keeps motionless after adjusting for the first time, and follow-up processing is put into the base and just can be confirmed the base position with reference to the reference angle, and first curb plate positioning mechanism, middle supporting positioning mechanism push in proper order to the other two limits of frame base just can confirm the position of first slider, third slider respectively, and positioning speed is very fast, and workman intensity of labour is very low, the utility model discloses production efficiency is more than 3 times of traditional production efficiency, has created considerable economic benefits for the enterprise;

the utility model discloses welding position device structural design is simple, convenient operation is swift, and the practicality is very strong, has important meaning in hand tablet press production technical field.

Drawings

FIG. 1 is a first structural diagram of a frame of a conventional hand-operated tablet press;

FIG. 2 is a second structural diagram of a frame of a conventional hand-operated tablet press;

FIG. 3 is a first schematic structural diagram of a frame of the hand-operated tablet press of the present invention;

fig. 4 is a schematic structural diagram of a frame of the hand-operated tablet press of the present invention;

FIG. 5 is a schematic view of the front direction structure of the welding positioning device of the present invention;

FIG. 6 is a schematic view of the front direction structure of the welding positioning device of the present invention;

FIG. 7 is a schematic view of the side direction structure of the welding positioning device of the present invention;

FIG. 8 is an enlarged view of the point A of FIG. 7 according to the present invention;

FIG. 9 is a schematic view of the structure of the press block and the press block accommodating cavity;

fig. 10 is a first structural diagram of the back direction of the welding positioning device of the present invention;

fig. 11 is a second structural diagram of the back direction of the welding positioning device of the present invention;

figure 12 is an enlarged view of a portion of figure 11 in accordance with the present invention;

fig. 13 is a schematic view of the welding and positioning device of the present invention for positioning the frame of the hand-operated tablet press.

In the figure: 1. a frame; 11. a frame base; 12. a first side plate; 121. a first plane; 122. a second plane; 13. a second side plate; 14. an upper guide plate; 141. an inboard plane; 15. a lower deck plate; 16. the material poking rod is provided with an ear;

2. a work table; 21. a table top; 22. a column; 23. a table top screw; a T-shaped open slot; 25. locking the bolt; 26. a pedal plate; 27. a table base; 28. a pedal disc through hole; 29. a handle screw;

31. a first guide rail; 32. a first slider assembly; 321. a first slider; 322. a first pressing block; 323. a first bolt hole; 324. a first fastening member; 325. a first compact accommodating chamber; 33. a first side plate positioning assembly; 331. a first positioning plate; 332. a pin shaft;

41. a second guide rail; 42. a second slider assembly; 420. a second pressure block accommodating cavity; 421. a second slider; 422. a second pressing block; 423. a second bolt hole; 424. a second fastening member; 425. a reference block; 426. a first adjustable fastening handle of the reference block; 427. a first threaded hole of the reference block; 428. a second adjustable fastening handle of the reference block; 43. a second side plate positioning assembly; 431. a second positioning plate; 44. a base presser mechanism; 441. a strip-shaped pressing plate; 442. a gasket;

51. a third guide rail; 52. a third slider assembly; 521. a third slider; 522. a third pressing block; 523. a third bolt hole; 524. a third fastening member; 525. a third pressure block accommodating cavity; 53. a mid-plate positioning assembly; 531. a middle positioning plate; 532. an upper support plate; 533. a lower supporting plate; 54. an upper pressing sub mechanism; 541. an upper pressure plate; 542. an upper clamping block; 543. an upper compression screw rod; 544. an upper compression through hole; 545. an upper bearing plate; 546. an upper support through hole; 547. an upper support bar; 55. a lower presser mechanism; 551. a lower pressing plate; 552. a lower clamping block; 553. a lower hold down screw; 554. pressing the through hole downwards; 555. a lower bearing plate; 556. a lower support through hole; 557. a lower support bar; 56. a pressing plate height adjusting sub-mechanism; 561. a height bearing plate; 562. a height lead screw; 563. a boss shaft seat;

61. a slider screw; 62. vertical type bearing with a seat.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

Preferably, the first sliding block, the second sliding block and the third sliding block are all provided with a power unit by a screw auxiliary lead screw assembly; the screw pair lead screw assembly comprises a slide block lead screw with a hand wheel and a vertical type bearing with a seat, wherein the vertical type bearing with the seat is connected with the slide block lead screw bearing, and the slide block lead screw is in threaded connection with the slide block. The hand wheel is rotated, the reciprocating motion of the sliding block is realized through the sliding block lead screw, the structure is simple and stable, and the operation is convenient.

Preferably, the first pressing block, the second pressing block and the third pressing block are cuboid blocks with grooves in the middle, and the pressing block accommodating cavity is matched with the pressing blocks in shape. Be equipped with the recess in the middle of the briquetting, correspondingly, the briquetting holds the corresponding place in chamber and will have the assorted arch, and the arch is the partly of slider, and the arch plays certain helping hand effect in slider reciprocating motion, does benefit to the reciprocating sliding of slider, and the flexibility ratio is high, and use comfort is high.

Preferably, first guide rail, second guide rail, third guide rail are the design of forked tail slot type double guide rail, and first slider, second slider and third slider are equipped with the forked tail guide block with forked tail slot type double guide rail looks adaptation respectively. The dovetail groove type double-guide-rail structure is flexible in sliding and stable in operation.

Preferably, the datum block hold down comprises a datum block first adjustable hold down handle; the datum block is Z-shaped, a first threaded hole of the datum block matched with a first adjustable fastening handle of the datum block is formed in the head of the datum block, and the datum block is connected with the inner side face of the second sliding block in a sliding mode through a guide rail guide block. The reference block can freely move and stop relative to the second sliding block, and the structure design is simple and the operation is simple.

Preferably, base clamp mechanism sets up rectangular fretwork hole's rectangular clamp plate including the centre, and the adjustable tight handle of reference block second passes rectangular fretwork hole and sets up the reference block second screw hole screw-thread fit connection on the reference block. The waist-shaped strip pressing plate is ingenious in structural design, when the rack base needs to be pressed tightly, the strip pressing plate is pulled towards the base direction, and after the strip pressing plate is locked, the strip pressing plate is firmly pressed on the rack base; when the base of the rack is not required to be compressed, the second adjustable fastening handle of the reference block is loosened, and the long strip pressing plate is reversely pulled.

the upper pressing plate and the lower pressing plate are both provided with power units by pressing plate height adjusting sub-mechanisms; the upper pressure plate and the lower pressure plate are both in sliding connection with the middle positioning plate in a guide rail guide block matching mode; the head position of middle locating plate is fixed and is equipped with the high bearing plate, and the high lead screw that is equipped with the hand wheel is connected with high bearing plate bearing, and the end of high lead screw and the boss axle bed clearance fit who fixes at middle locating plate terminal position, top board, holding down plate are equallyd divide and are do not constitute screw pair with high lead screw. The upper guide plate and the lower platen are placed on the supporting plate, the positions of the upper guide plate and the lower platen are determined even though the middle positioning plate is attached and placed, the upper guide plate and the lower platen are locked by the pressing mechanism, the upper pressing sub mechanism and the lower pressing sub mechanism are ingenious in structural design and are linked, when the upper guide plate is vertically pressed by the upper pressing plate, the lower platen is also just pressed by the lower pressing plate, the clamping block is required to be limited for preventing transverse movement, the pressing lead screw for driving the clamping block to move forms a screw pair, the structural design is simple, and the operation is convenient and easy.

Preferably, the table is a height-adjustable rotary table; a table-board screw rod in threaded connection with the upright post is fixedly arranged on the back of the workbench, a T-shaped open slot is formed in the head of the upright post, and the vertical slot is clamped by a locking bolt; the root of the upright post is fixedly provided with a pedal disc, and the upright post is connected with a bearing of the workbench base; the pedal plate is provided with a pedal plate threaded hole, and a handle screw rod in threaded connection with the pedal plate threaded hole extends into a pedal plate through hole arranged on the base of the workbench. The workstation is the rotation type, and the workman accessible is pedal to be coiled freely change direction during the welding, and the workstation has the height control function simultaneously yet.

Example 1:

a hand-operated tablet press frame prewelding one-time forming positioning method comprises the following operation steps that a hand-operated tablet press frame 1 comprises a frame base 11, a first side plate 12 and a second side plate 13 which are oppositely arranged on the frame base 11, an upper guide plate 14 and a lower table panel 15 which are positioned between the first side plate 12 and the second side plate 13, wherein a material poking rod installation lug 16 is further fixedly arranged on the first side plate 12:

a. the position of a frame base 11 is fixed on the workbench 2;

b. a first side plate positioning mechanism and a second side plate positioning mechanism are arranged on the workbench 2; the position of the first side plate 12 is determined by using a first side plate positioning mechanism, a pin 332 is arranged on the first side plate positioning mechanism, and the relative position of the material poking rod mounting lug 16 and the first side plate 12 can be determined after the material poking rod mounting lug 16 is sleeved on the pin 332; determining the position of the second side plate 13 using a second side plate positioning mechanism; the pin shaft can be designed into a two-stage variable diameter cylinder, and the material poking rod mounting lug is sleeved in from the small-diameter column head and stops at the large-diameter column head;

c. an intermediate support positioning mechanism is arranged on the workbench 2, the intermediate support positioning mechanism comprises an intermediate positioning plate 531 arranged in a vertical direction, and an upper support plate 532 and a lower support plate 533 which are respectively arranged in a direction vertical to the intermediate positioning plate 531 are fixedly arranged on the intermediate positioning plate 531; the upper guide plate 14 is positioned on the upper support plate 532 and is placed in fit with the middle positioning plate 531; the lower deck plate 15 is positioned on the lower support plate 533 and placed in contact with the middle positioning plate 531; the alignment of the inner plane 141 of the upper guide plate 14 with the first plane 121 of the side plate is achieved by controlling the local thickness of the middle positioning plate 531, and the alignment of the back surface of the lower deck plate 15 with the second plane 122 of the side plate is achieved by controlling the local thickness of the middle positioning plate 531; namely, the thickness of the same middle positioning plate is thick and thin, the included angle between the supporting plate and the middle positioning plate is the reference angle of the upper guide plate and the lower table panel, and the positions of the upper guide plate and the lower table panel are determined after the upper guide plate and the lower table panel are attached to the respective reference angles;

d. locking the upper guide plate 14 and the lower table top plate 15 by using a clamping tool; at the moment, the positions of the two side plates, the base, the upper guide plate, the lower table panel and the material poking rod mounting lug are fixed;

e. sequentially welding the positioned parts by using a welding tool;

f. and after welding, loosening the clamping tool, and removing the positioning mechanism to take out the pre-welded frame 1.

According to the embodiment, the requirement on production convenience is met without sacrificing the structural strength of a product, each part is locked and positioned on the workbench, and on the premise of not influencing the mechanical strength of the product, the quick pre-welding molding of the rack is realized, the pre-welding is performed at one time, and the processing period is obviously shortened; the inner side plane of the upper guide plate needs to be aligned with the first plane of the side plate, the back surface of the lower table top plate needs to be aligned with the second plane of the side plate, accurate positioning of the upper guide plate and the lower table top plate is achieved by controlling the thickness of the middle positioning plate, and operation is simple; the method has the advantages of high positioning speed, low labor intensity of workers, omission of a punching process, effective simplification of the machining steps of the machine frame, great improvement of the production efficiency of enterprises and considerable economic benefit brought to the enterprises.

Example 2:

a welding positioning device applied to a frame pre-welding one-time forming positioning method of a hand-operated tablet press mainly comprises a workbench 2, a first side plate positioning mechanism, a second side plate positioning mechanism and an intermediate supporting positioning mechanism, wherein the first side plate positioning mechanism, the second side plate positioning mechanism and the intermediate supporting positioning mechanism are positioned on a table top 21 of the workbench 2;

the first side plate positioning mechanism comprises a first sliding block assembly 32 sliding along the first guide rail 31, and a first side plate positioning assembly 33 playing a role of positioning the first side plate 12 is fixedly arranged on the first sliding block assembly 32; the first sliding block assembly 32 comprises a first sliding block 321, a first pressing block accommodating cavity 325 for accommodating a first pressing block 322 is arranged at the bottom of the first sliding block 321, the first pressing block 322 is embedded in the first pressing block accommodating cavity 325 in a clearance mode and is in contact with the table top 21 of the workbench 2, the first pressing block 322 is constrained by the first sliding block 321 and has no degree of freedom in the X-axis direction and the Y-axis direction, a first bolt hole 323 communicated with the first pressing block accommodating cavity 325 is arranged on the first sliding block 321, and a first fastening piece 324 for fastening the first pressing block 322 is arranged in the first bolt hole 323 in a matching mode; the first side plate positioning assembly 33 comprises a first positioning plate 331 with a clamping jaw, the first positioning plate 331 is fixedly connected to the first sliding block 321, and a pin 332 for positioning the material poking rod mounting lug 16 is fixedly arranged on the first positioning plate 331; the pin shaft is designed into a two-stage reducing cylinder, the material poking rod mounting lug penetrates through the small-diameter column head until being limited by the large-diameter column head, and the position of the material poking rod mounting lug is the determined position when the material poking rod mounting lug reaches the large-diameter column head. The first positioning plate 331 can be designed according to the shape of the first side plate, so that a fool-proof effect is achieved, and the use is convenient; in addition, a supporting plate in a triangular shape can be designed on the back of the first positioning plate, so that the stability and the durability of the device are improved.

The second side plate positioning mechanism comprises a second sliding block assembly 42 sliding along the second guide rail 41, and a second side plate positioning assembly 43 for positioning the second side plate 13 is fixedly arranged on the second sliding block assembly 42; the second slider assembly 42 comprises a second slider 421, a second pressing block accommodating cavity 420 for accommodating a second pressing block 422 is arranged at the bottom of the second slider 421, the second pressing block 422 is embedded in the second pressing block accommodating cavity 420 in a clearance manner and is in contact with the table top 21 of the workbench 2, the second pressing block 422 is constrained by the second slider 421 and has no degree of freedom in the directions of the X axis and the Y axis, a second bolt hole 423 communicated with the second pressing block accommodating cavity 420 is arranged on the second slider 421, a second fastening piece 424 for fastening the second pressing block 422 is arranged in the second bolt hole 423 in a matching manner, a reference block 425 sliding in the direction of the Y axis is arranged on the inner side surface of the second slider 421, and a reference block pressing piece for fixing the reference block 425 on the second slider 421 is arranged on the reference block 425; the base pressing sub-mechanism 44 which plays a role of pressing the frame base 11 is also arranged on the reference block 425; the second side plate positioning assembly 43 comprises a second positioning plate 431 provided with a claw, and the second positioning plate 431 is fixedly connected to the second sliding block 421; the second positioning plate can be designed according to the shape of the second side plate, so that the fool-proof effect is achieved, and the use is convenient; in addition, a supporting plate in a triangular shape can be designed on the back of the second positioning plate, so that the stability and the durability of the device are improved.

The middle supporting and positioning mechanism comprises a third slide block assembly 52 sliding along a third guide rail 51, and a middle plate positioning assembly 53 for positioning the upper guide plate 14 and the lower table top plate 15 is fixedly arranged on the third slide block assembly 52; the third slider assembly 52 comprises a third slider 521, a third pressing block accommodating cavity 525 for accommodating a third pressing block 522 is arranged at the bottom of the third slider 521, the third pressing block 522 is embedded in the third pressing block accommodating cavity 525 in a clearance mode and is in contact with the table top 21 of the workbench 2, the third pressing block 522 is constrained by the third slider 521 and has no degree of freedom in the X-axis and Y-axis directions, a third bolt hole 523 communicated with the third pressing block accommodating cavity 525 is arranged on the third slider 521, and a third fastening piece 524 for fastening the third pressing block 522 is arranged in the third bolt hole 523 in a matching mode; the middle plate positioning assembly 53 includes a middle positioning plate 531 fixed on the third slider 521, an upper supporting plate 532 for supporting the upper guide plate 14 and a lower supporting plate 533 for supporting the lower platen 15 are fixed on the middle positioning plate 531, an upper pressing sub-mechanism 54 for pressing the upper guide plate 14 is disposed above the upper supporting plate 532, and a lower pressing sub-mechanism 55 for pressing the lower platen 15 is disposed below the lower supporting plate 533. The first fastener 324, the second fastener 424, and the third fastener 524 are all adjustable fastening handles.

The working process of the embodiment is as follows: when the frame is machined for the first time, the position of the reference block needs to be adjusted, after the position of the reference block is determined, the reference block pressing piece is locked to enable the reference block to be fixed on the second sliding block, the frame base is placed by taking the reference block and the second sliding block as references, and the position of the frame base is fixed by the base pressing sub mechanism. Promote first slider assembly, make the first slider of first slider assembly support and bump to the frame base, lock first tight piece, first tight piece firmly compresses tightly first briquetting on the workstation mesa, and the intracavity is held at the first briquetting of first slider to first briquetting embedding, and the fixed position that makes first slider of first briquetting can be fixed. And then, the middle supporting and positioning mechanism is pushed, so that the third sliding block of the middle supporting and positioning mechanism is abutted against the base of the rack, a third fastening member is locked, the third fastening member firmly compresses a third pressing block on the working table surface, the third pressing block is embedded into a third pressing block accommodating cavity of the third sliding block, and the third pressing block is fixed so that the position of the third sliding block can be fixed. Insert first curb plate in the jack catch of first locating plate, embolia material stirring rod installation ear at the round pin epaxial, insert the second curb plate in the jack catch of second locating plate, place the upper guide on the upper support plate, and the locating plate is placed in the middle of the upper guide laminating, place down the platen on the lower support plate, and the locating plate is placed in the middle of the lower platen laminating, guarantee through setting up middle locating plate local thickness in advance that its inboard plane just aligns with the first plane of curb plate after the upper guide is placed, its back just aligns with the second plane of curb plate after the lower platen is placed. The upper guide plate is fixed by the upper pressing sub mechanism after being placed, and the lower table panel is fixed by the lower pressing sub mechanism after being placed. At the moment, the positions of the two side plates, the base, the upper guide plate, the lower table panel and the material poking rod mounting lug are fixed, and the positions needing to be welded are welded by using a welding tool. After welding, the positions of the second side plate positioning mechanism and the reference block are kept still, all locking tools are loosened, and the first sliding block and the third sliding block are moved to take out the machined rack.

The welding positioning device of the embodiment is ingenious in structural design, the position of a base of the rack is determined by the matching of the second sliding block and the reference block, the position of the first side plate is determined by the first side plate positioning mechanism, the position of the second side plate is determined by the second side plate positioning mechanism, the positions of the upper guide plate and the lower table top plate are determined by the middle supporting positioning mechanism, the positioning is carried out when the positioning is carried out, the rack is pre-welded and formed at one time, the machining process of the rack is greatly simplified, the positioning operation is convenient and rapid, the labor intensity of workers is effectively reduced, and the production efficiency of enterprises is obviously improved; in the embodiment, the corner between the reference seat and the second sliding block is used as the reference angle of the base of the rack, the reference seat is kept still after being adjusted for the first time, the base can be determined by putting the reference angle into the base as the reference in the subsequent processing, the first side plate positioning mechanism and the middle supporting positioning mechanism are sequentially pushed into the other two edges of the base of the rack to respectively determine the positions of the first sliding block and the third sliding block, the positioning speed is high, the labor intensity of workers is low, the production efficiency of the embodiment is more than 3 times of that of the traditional production efficiency, and considerable economic benefits are created for enterprises;

this embodiment welding position device structural design is simple, convenient operation is swift, and the practicality is very strong, has important meaning in hand tablet press production technical field.

Example 3:

in the present embodiment, on the basis of embodiment 2, the first slider 321, the second slider 421 and the third slider 521 are provided with power units by the screw pair lead screw assembly. Specifically, the screw pair lead screw assembly comprises a slide block lead screw 61 provided with a hand wheel and a vertical type bearing 62 with a seat, wherein the vertical type bearing 62 with the seat is in bearing connection with the slide block lead screw 61, and the slide block lead screw 61 is in threaded connection with a slide block. The hand wheel is rotated, the reciprocating motion of the sliding block is realized through the sliding block lead screw, the structure is simple and stable, and the operation is convenient.

In this embodiment, the first pressing block 322, the second pressing block 422 and the third pressing block 522 are rectangular blocks with grooves in the middle, and the shape of the pressing block accommodating cavity is matched with that of the pressing block. Be equipped with the recess in the middle of the briquetting, correspondingly, the briquetting holds the corresponding place in chamber and will have the assorted arch, and the arch is the partly of slider, and the arch plays certain helping hand effect in slider reciprocating motion, does benefit to the reciprocating sliding of slider, and the flexibility ratio is high, and use comfort is high.

In this embodiment, the first guide rail 31, the second guide rail 41, and the third guide rail 51 are all designed as a dovetail groove type dual guide rail, and the first slider 321, the second slider 421, and the third slider 521 are respectively provided with a dovetail guide block adapted to the dovetail groove type dual guide rail. The dovetail groove type double-guide-rail structure is flexible in sliding and stable in operation.

The datum block hold down of this embodiment includes a datum block first adjustable hold down handle 426; the reference block 425 is in a Z shape, a first reference block threaded hole 427 matched with the first reference block positioning and fastening handle 426 is arranged at the head of the reference block 425, and the reference block 425 is in sliding connection with the inner side surface of the second sliding block 421 through the matching mode of the guide rail guide block. The reference block can freely move and stop relative to the second sliding block, and the structure design is simple and the operation is simple.

The base pressing sub-mechanism 44 of the present embodiment includes a strip pressing plate 441 having a strip hollow hole formed in the middle, and a second adjustable fastening handle 428 of the reference block passes through the strip hollow hole to be connected with a second threaded hole of the reference block formed on the reference block 425 in a threaded fit manner. The waist-shaped strip pressing plate is ingenious in structural design, when the rack base needs to be pressed, the strip pressing plate is pulled towards the base direction, and after the strip pressing plate is locked, the strip pressing plate firmly presses the rack base; when the base of the rack is not required to be compressed, the second adjustable fastening handle of the reference block is loosened, and the long strip pressing plate is reversely pulled. The strip pressing plate 441 is waist-shaped, the strip hollow hole is also waist-shaped, and a gasket 442 is further arranged between the second adjustable fastening handle 428 of the reference block and the strip pressing plate 441.

Example 4:

in this embodiment, the upper press sub mechanism and the lower press sub mechanism will be described in detail based on embodiment 2.

The upper pressing sub mechanism 54 of this embodiment includes an upper pressing plate 541 moving up and down along a middle positioning plate 531, an upper clamping block 542 playing a role of clamping the upper guide plate 14 is arranged at the rear end position of the upper pressing plate 541, the upper clamping block 542 and an upper pressing screw 543 provided with a hand wheel form a screw pair, the tail end of the upper pressing screw 543 is in clearance fit with an upper pressing through hole 544 arranged on the rear side surface of the upper pressing plate 541, the head end of the upper pressing screw 543 is connected with an upper bearing plate 545 by a bearing, upper bearing through holes 546 are arranged at both sides of the upper clamping block 542, one end of an upper bearing rod 547 penetrating through the upper bearing through hole 546 is fixedly connected with the upper pressing plate 541, and the other end is fixedly connected with the upper bearing plate 545;

the lower pressing sub mechanism 55 comprises a lower pressing plate 551 moving up and down along the middle positioning plate 531, a lower clamping block 552 playing a role of clamping the lower platform panel 15 is arranged at the rear end position of the lower pressing plate 551, the lower clamping block 552 and a lower pressing screw 553 provided with a hand wheel form a screw pair, the tail end of the lower pressing screw 553 is in clearance fit with a lower pressing through hole 554 arranged on the rear side surface of the lower pressing plate 551, the head end of the lower pressing screw 553 is connected with a lower bearing plate 555 bearing, lower supporting through holes 556 are arranged on two sides of the lower clamping block 552, one end of the lower supporting rod 557 penetrates through the lower supporting through hole 556 and is fixedly connected with the lower pressing plate 551, and the other end of the lower supporting rod 557 is fixedly connected with the lower bearing plate 555;

the upper pressing plate 541 and the lower pressing plate 551 are both provided with a power unit by the pressing plate height adjusting sub-mechanism 56; the upper pressure plate 541 and the lower pressure plate 551 are both in sliding connection with the middle positioning plate 531 in a way of matching with guide rail guide blocks; the head position of middle locating plate 531 is fixed with height bearing board 561, and height lead screw 562 who is equipped with the hand wheel is connected with height bearing board 561 bearing, and the clearance fit is gone up with boss axle bed 563 who fixes in middle locating plate 531 extreme position to the end of height lead screw 562, and upper pressure plate 541, holding down plate 551 are equallyd divide and are constituted screw pair with height lead screw 562 respectively. The upper guide plate and the lower platen are placed on the supporting plate, the positions of the upper guide plate and the lower platen are determined even though the middle positioning plate is attached and placed, the upper guide plate and the lower platen are locked by the pressing mechanism, the upper pressing sub mechanism and the lower pressing sub mechanism are ingenious in structural design and are linked, when the upper guide plate is vertically pressed by the upper pressing plate, the lower platen is also just pressed by the lower pressing plate, the clamping block is required to be limited for preventing transverse movement, the pressing lead screw for driving the clamping block to move forms a screw pair, the structural design is simple, and the operation is convenient and easy.

The specific working process of the embodiment is as follows: rotating a hand wheel of the height lead screw, wherein the height lead screw drives the upper pressure plate and the lower pressure plate to move downwards until the upper pressure plate abuts against the upper guide plate and the lower pressure plate abuts against the lower table panel; and then, a hand wheel of the upper pressing screw rod is rotated, the upper clamping block gradually moves towards the upper guide plate until the upper guide plate is clamped, the hand wheel of the lower pressing screw rod is rotated, and the lower clamping block gradually moves towards the lower table panel until the lower table panel is clamped.

Example 5:

in the embodiment, on the basis of the embodiment 2, the workbench 2 is designed into a rotary workbench with adjustable height; a table-board screw 23 in threaded connection with the upright column 22 is fixedly arranged on the back of the workbench 2, a T-shaped open slot 24 is formed in the head of the upright column 22, and the vertical slot is clamped by a locking bolt 25; two holes are formed in two sides of the vertical notch, one is a threaded hole, the other is a through hole, the locking bolt penetrates through the through hole to be in threaded connection with the threaded hole, the locking bolt is rotated to enable the vertical notch to be narrowed continuously, and therefore the screw rod is fixedly connected with the stand column. The root of the upright post 22 is fixedly provided with a pedal plate 26, and the upright post 22 is connected with a workbench base 27 through a bearing. The working table can be freely rotated by stepping on the pedal disc.

The pedal plate 26 is provided with a pedal plate threaded hole, and a handle screw 29 in threaded connection with the pedal plate threaded hole extends into a pedal plate through hole 28 provided on the table base 27. The function of this structure is when needing height control with pedal dish, stand fixed motionless.

In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications in the shape, structure, characteristics and spirit of the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a hand tablet press frame welds welding position device for one-time shaping in advance, includes the workstation, its characterized in that: the positioning device also comprises a first side plate positioning mechanism, a second side plate positioning mechanism and a middle supporting and positioning mechanism which are positioned on the table top of the workbench;

2. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the first fastening piece, the second fastening piece and the third fastening piece are all adjustable fastening handles.

3. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-cranking tablet press as claimed in claim 1 or 2, which is characterized in that: the first sliding block, the second sliding block and the third sliding block are all provided with a power unit by a screw auxiliary lead screw assembly; the screw pair lead screw assembly comprises a slide block lead screw with a hand wheel and a vertical type bearing with a seat, wherein the vertical type bearing with the seat is connected with the slide block lead screw bearing, and the slide block lead screw is in threaded connection with the slide block.

4. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the first pressing block, the second pressing block and the third pressing block are cuboid blocks with grooves in the middle, and the pressing block accommodating cavity is matched with the pressing block in shape.

5. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the first guide rail, the second guide rail and the third guide rail are designed to be dovetail groove type double guide rails, and the first sliding block, the second sliding block and the third sliding block are respectively provided with dovetail guide blocks matched with the dovetail groove type double guide rails.

6. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the reference block pressing piece comprises a first reference block positioning and tightening handle; the datum block is Z-shaped, a first threaded hole of the datum block matched with a first adjustable fastening handle of the datum block is formed in the head of the datum block, and the datum block is connected with the inner side face of the second sliding block in a sliding mode through a guide rail guide block.

7. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the base pressing sub mechanism comprises a strip pressing plate, a strip hollow hole is formed in the middle of the strip pressing plate, and a second adjustable fastening handle of the reference block penetrates through the strip hollow hole to be in threaded fit connection with a second threaded hole of the reference block formed in the reference block.

8. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 7, wherein: the rectangular clamp plate is waist type form, and rectangular fretwork hole also is waist type form, and the adjustable position of benchmark piece second is tightly fixed and is still equipped with the gasket between handle and the rectangular clamp plate.

9. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the upper pressing sub mechanism comprises an upper pressing plate which moves up and down along the middle positioning plate, an upper clamping block which plays a role of clamping the upper guide plate is arranged at the position of the rear end of the upper pressing plate, the upper clamping block and an upper pressing screw rod with a hand wheel form a screw pair, the tail end of the upper pressing screw rod is in clearance fit with an upper pressing through hole formed in the rear side surface of the upper pressing plate, the head end of the upper pressing screw rod is connected with an upper bearing plate bearing, upper bearing through holes are formed in two sides of the upper clamping block, one end of the upper bearing rod penetrates through the upper bearing through hole and is fixedly connected with the upper pressing plate, and the other end of the upper bearing rod is fixedly connected with the upper bearing plate;

10. The welding and positioning device for the pre-welding one-time forming of the rack of the hand-operated tablet press as claimed in claim 1, wherein: the workbench is a rotary workbench with adjustable height; a table-board screw rod in threaded connection with the upright post is fixedly arranged on the back of the workbench, a T-shaped open slot is formed in the head of the upright post, and the vertical slot is clamped by a locking bolt; the root of the upright post is fixedly provided with a pedal disc, and the upright post is connected with a bearing of the workbench base; the pedal plate is provided with a pedal plate threaded hole, and a handle screw rod in threaded connection with the pedal plate threaded hole extends into a pedal plate through hole arranged on the base of the workbench.